Soldering iron



Jan. 16, 95l

W. P. SQHIFFLEGER SOLDERING IRON Filed. Nav. 22, 194s mm A| wm um I nveutor Wa /demar R Schiff/e gef from the Patented `fan. 16, .7.1951

"z Samui.

PATENT i,

siiiim' d tii Waldemar if; 'smoren Wiawatosa; wie. ppieaiitniioriei theprovision `of e reeiproeable i fe 'solder chamber., 'whereby ihesoRirdisp-e sais.

operation may be expeditiously eife'tfd.V

VAnother feature or the iYA "tien voices die reciprocating the solderagitatiiig plunger;

Some of the advantages of. the invention li lijn itsfsiinpiieity of'eoristiiietien,V in its eiiioiency, and in its adaptability toeconomical manufacture.

With the fabove more importantfobcts features in view and such otherobjects tures as may become apparent vas this spection proceeds, 'thnvti 'c's'ists ssenti o f tlr enstruction and ailaii'g ment of Aliiif'shown i`n 'the yaecoinpanying drawings in i? Figure 2l a longitudinalcross sectional 'f' W of theeiiivftioniv H Y Y A i2 is a cross sectivi-idw, taken-@Edith stantially in the plane of the line 2-2 in Figure1;

Figure 3 is a cross sectional view, taken substantially in the plane ofthe line 3-3 in Figure 1, and;

Figure 4 is a cross sectional view, taken substantially in the plane ofthe line 4 4 in Figure 1.

Like characters of reference are employed to designate like parts in thespecification and throughout the several views.

Referring now to the accompanying drawings in detail, the inventionconsists of a soldering iron designated generally by the referencecharacter I0, the same embodying in its construction 'an elongated bodyI2 terminating at one end thereof in a pointed work engaging tip I4. thebody I2 being provided with a'cylindrical solder chamber I6 which, inturn, is equipped at one end thereof with a removable plug I8 so thatsolder may be inserted in the chamber, as will be clearly apparent.

The remaining `end of the chamber Hicomse, 1154i; 'seiiai shitsinimioates with a pessagjeiibiormed in the tip portion li, the outer endor this passage opening into a recess or depression 22 which "forms apocket, so "to speak, for the 'molten solder dis- 'pensed through thepassage irorn the chamber tubular iaeket 2liY is provided -onthfe v`bodyifi in spaced relation thereto, one end portion olf this jacketcontaining a suitable eleotriche't: ing e ent '2 6 on enoircie's 'the'loo'dy I2 sub= stan elly and heats 'the chamber-Iii so4 that the'soiaer placed 'therein is maintained in a rtree honing condition. 'fdesired, a layerjei inem-ating materia-1 ze may be V provided betweenthevelem'nt 2 5 and 'the jacket 24, so as to 4pievent o substantial-1yminimize outward dissipation 'or The remaining portion of the jacket "24oon- 't'ains a sleeve 3u of insulating material, which is @a provided in'diametrioaiiy opposite sides tnereoi Care with lo ngitirciinally:extending groovesV sito aca commoiiate a 'pair of lelectric conductors'34 sup= piying-currejntto the element "2%. Each of these conductors is'in l'cir'oiiit with one off a pair oi spaced AFrings 3s positioned inoiroiiinie'rentiai grooves provided in the "sleey 3G, and it be that'vfblr handle '3B S posit fied on the aoket z so that 'the 'entiresoldering iron iin-ay be yderive-iiien'ii'y grasped 'by `"the hand.

"The "u al 'two wires vof'Y an attachment oord 4l! n" creato a .pair orterminal screws 4i which' extend through the .handle 38; jacket 24 and'the sleeve 311, each being in Vcircuit with one of the rings 36,substantially as shown.

A suitable enclosure or guard 44 may be secured to the handle 38 as at46 so as to cover the terminal screws 42, and if desired, theaforementioned plug I8 may be equipped with an enlarged head which. issubstantially equal in diameter to the outer diameter of the handle 38.

A reciprocable plunger 48 is provided in the solder chamber I6, thereciprocation of this plunger being effected by means of a control rod50, one end of which is equipped with an eye 52 disposed adjacent'thehandle 38, while its remaining end portion is angulated and screwthreaded as shown at 54. The body l2 is provided in the lateral wallthereof with a longitudinally extending slot 56 and the angulatedportion 54 of the rod 50 is slidable in this slot and is secured in theplunger 48, so that by simply manipulating the eye 52 of the control rod50, the plunger 48 may be reciprocated in the chamber I6 as indicated at58 in Figure 1.

` `,As will be apparent from the accompanying ber I6. It is to be notedthat the channels IIS,`

68, 10 connect together the two compartments.I II,

62 of the chamber I6.`

In order to equalize air pressure ori-:both sides w of the plunger 48,the aforementioned plug .I8 may be formed with a vent opening oraperture is inserted in the chamber I6 as has been already describedand, being heated by the element 26,

the solder Yis maintained in a free flowing cone.

molten solder in the compartment 60 will ;,be causedto flow through thechannels 66,-,68-, 78.:

from the compartment 60 into the compartment 62, and thence through thepassage 2Il to y,r-the soldering tip I4. That is to say, each time the:rod 50 is pulled towardthe handle 38, Athe der pression or recess 6IIwill function as ascoop, so to speak, causing the solder in thecompartment 6I] to travel into the compartment 62. On the other hand,when the rod 50 is pushed away from the handle 38, the plunger 48 willexpel the solder from the compartment 62 through the pas.- sage 26,since Ythere is a lesser resistance to the i'low of solder in thisdirection than there is to the 110W thereof backthrough the channel j,66 into the compartment 60. However, if'desii-ed, a suitable check valve(not shown) may be provided in the channel 66, 68, 'I0 to preventrearward flow of solder. 'l

It'will be noted that by virtue of the obliquely extending channelportion 68 theV channel por-v tion 'I0 is disposed immediately adjacentjthe' heated wall of the body I2, so that excessive cool ingof solder inthe .plunger 48 is prevented.

.It'is believed that the advantages and` use cfg the invention will beclearly apparent fr'ornthe .I

yas new is:

f'l. In a soldering iron, the combination of a vvtubular body havingfront and rear ends and affording a chamber for liquid solder, a conicalsoldering `tip 'provided at the front end of said body and provided witha solder outlet passage in communication with said chamber, the rear end12, and ,when the invention is placed in use, solder portion-.of saidbody constituting a handle, a removable ller plug provided at the rearend of the body'and having a vent aperture in communication with thechamber, a reeiprocable plunger positioned intermediate the.v ends ofvsaid chamber andrseparating the latter into front and rear compartments,said body being provided in itslateralwall1witha longitudinal slotcovered by said plunger, and an L-shaped actuating rod secured `at-oneend thereof to said plunger land extendingoutwardly through-said slot,said actuating.,rod aording a straight portion disposed exteriorlyof andin spaced parallel relation to the body and terminating vat its free endin a finger piece adjacent said handle, said plunger being provided with.a-longitudinal solder transmitting channel connectingsaid front andrear compartments. Y

2. IThe device as Vdened in claim 1 wherein at least a1 portion ofthelength of said channel is open sidedand disposed contiguously with thewall of said chamber.

.WALDEMARR SCHIFFLEGER.,

`Name l l Date V1,760,519 ,Palmer= May 27, 1930 12,054,505@ LeitschSept. 15, 1936 2,423,900 Parker ;July 15, 1947 2,l52,360l l Dunham Oct.26, 1948

